Hybrid tea rose plant named ‘WEKmostadabre’

ABSTRACT

A new variety of Hybrid Tea rose plant suitable for garden decoration, having flowers of hand-painted pink with cream reverse coloration.

Classification: The present invention relates to a new Rosa hybridaplant.

Variety denomination: The new plant has the varietal denomination‘WEKmostadabre’.

BACKGROUND OF THE INVENTION

This invention relates to a new and distinct variety of Hybrid Tea Rose.It has a non-disseminated seedling of my creation as its seed parentwith the following genetic origin Moonstone x Stainless Steel and as itspollen parent the variety known as ‘FRYcentury’ (U.S. Plant Pat. No.15,334).

SUMMARY OF THE INVENTION

Among the features which distinguish the new variety from otherpresently available and commercial rose cultivars known to the inventorare the following combinations of characteristics: its elegant highcentered flower, its unique hand-painted pink with cream reverse flowercoloration and its excellent color stability throughout the life of theflower. The plant has a bushy upright moderately spreading growinghabit, suitable for outdoor garden decoration.

Asexual reproduction of the new variety by budding as performed in KernCounty, Calif., shows that the foregoing and other distinguishingcharacteristics come true to form and are established and transmittedthrough succeeding asexual propagations. ‘WEKmostadabre’ may beasexually propagated by cuttings, budding and grafting. The budding andgrafting successfully occurred on the plant/rootstock Rosa hybrida cv.‘Dr. Huey’ (not patented).

COMPARISON WITH PARENTS

The new rose may be distinguished from its seed parent, anon-disseminated seedling of my creation by the following combination ofcharacteristics: whereas ‘WEKmostadabre’ bears double flowers (about 23to 31 petals) of hand-painted pink with cream reverse coloration, thenon-disseminated seedling bears double flowers of magenta pink withcream reverse coloration with significantly lesser petalage (about 18 to22 petals). The new variety bears flowers with a slight tea to fruityfragrance, whereas the seed parent bears flowers with a strong teafragrance.

The new variety may be distinguished from its pollen parent,‘FRYcentury’ by the following combination of characteristics: whereas‘WEKmostadabre’ bears medium to large sized flowers (about 8.6 to about12.1 cm. in diameter) of hand-painted pink with cream reversecoloration, ‘FRYcentury’ bears smaller flowers (about 8.0 to about 10.0cm. in diameter) of pale peach and pink coloration. The new variety hasa bushy upright moderately spreading medium to moderately tall growinghabit (about 95 to about 172 cm. in height), whereas the pollen parenthas a bushy, upright, slightly spreading, medium height shorter growinghabit (about 125 to about 150 cm. in height).

COMPARISON WITH THE CLOSEST COMMERCIALLY AVAILABLE CULTIVAR

The new variety may be distinguished from its closest commerciallyavailable cultivar, ‘JACwypin’ (U.S. Plant Pat. No. 17,097) by thefollowing combination of characteristics: whereas ‘WEKmostadabre’ bearsmedium to large sized flowers (about 8.6 to about 12.1 cm. in diameter)of hand-painted pink with cream reverse coloration, ‘JACwypin’ bearslarger flowers (about 11.0 to about 12.0 cm. in diameter) of pink withwhite reverse coloration. The new variety bears flowers with a slighttea to fruity fragrance, whereas the closest commercially availablecultivar bears flowers with a strong fruity fragrance.

BRIEF DESCRIPTION OF ILLUSTRATION

The accompanying photograph illustrates the new variety and shows theflowering thereof from bud to full bloom depicted in color as nearlycorrect as it is possible to make in a color illustration of thecharacter. The branches used for the photograph came from 3 to 4year-old rose plants of the new variety grown outdoors in RanchoCucamonga, Calif. in the month of December. Throughout thisspecification, color references and/or values are based upon The ColourChart of The Royal Horticultural Society (1966) except where commonterms of color definition are employed.

DESCRIPTION OF THE NEW VARIETY

The following description is of 3 to 4 year-old rose plants of the newvariety grown outdoors in Rancho Cucamonga, Calif. in the month ofDecember. Phenotypic expression may vary with environmental, culturaland climatic conditions, as well as differences in conditions of lightand soil.

FLOWER

The new variety usually bears its flowers singly. Flowers are borne onstrong medium to long stems (about 23 to about 75 cm.). Outdoors, theplant blooms abundantly and nearly continuously during the growingseason. The flowers have a slight tea to fruity fragrance.

BUD

The peduncle is about 3.2 to about 5.9 cm. in length, of average caliper(about 0.3 to about 0.4 cm. in diameter), and usually erect tomoderately stiff. It is somewhat rough, with few stipitate glands andfew hairs. Peduncle color is between 146B and 137C sometimes moderatelysuffused, especially on the side exposed to the sun, with between 187Aand 187B.

Before the calyx breaks, the bud is about 1.2 to about 2.2 cm. indiameter at the widest point, about 1.5 to about 2.9 cm. in length, andpointed to somewhat ovoid in shape. The surface of the bud bears between7 to 9 foliaceous appendages, usually with slender entire foliaceousparts extending beyond the tip of the bud about ½ or more of its length.Bud color is between 137C and 137D sometimes moderately suffused,especially on the side exposed to the sun, with between 187B and 187A.

The sepals are 5 per flower, about 2.0 to about 4.9 cm. in length andabout 0.6 to about 1.1 cm. in width at the widest point. The outersurface color of the sepal is between 137C and 137D sometimes moderatelysuffused, especially on the side exposed to the sun, with between 187Band 187A. The outer surface of the sepal is smooth and bears between 0to 4 foliaceous appendages with few stipitate glands and hairs. Theinner surface color of the sepal is near 146D broadly bordered by near137C. After the sepals open, the inner surface color is often moderatelysuffused, especially on the area exposed to the sun, with between 187Band 187A. The inner surface of the sepal is covered with fine woolytomentum; sepal margins are entire and lined with some stipitate glandsand hairs. The sepals are moderately permanent, and spear-shaped inshape with acute apices.

The receptacle of the flower is of short length (about 0.3 to about 0.4cm.) and moderately thin in caliper (about 0.5 to about 0.9 cm. indiameter). The receptacle is cup-shaped in form. Its surface is smoothwith some hairs and few stipitate glands and with somewhat thin fleshywalls. The receptacle color is between 146C and 144A sometimesmoderately suffused, especially on the side exposed to the sun, withbetween 187B and 187A.

As the petals open (after the calyx breaks), the bud is about 1.7 toabout 2.7 cm. in diameter at the widest point, about 2.4 to about 3.3cm. in length, and pointed to moderately ovoid in form. The color of theunder surfaces of the newly opened petals is between 11B and 4D oftenheavily blushed on the outermost petals with between 187A and 187B.There is no visible change in coloration at the point where the petalattaches. The color of the upper surfaces of the newly opened petals isbetween 1C and 154C often very lightly suffused with near 66C on theupper two thirds of the petals. There is no visible change in colorationat the point where the petal attaches.

BLOOM

When fully open, the bloom ranges from about 8.6 to about 12.1 cm. indiameter. Petalage is double with about 23 to 31 petals and about 3 to15 petaloids irregularly arranged. When partially open, the bloom formis high centered to somewhat cupped, and the petals are somewhat tightlyspiraled to cupped with petal edges moderately reflexed outward. Whenfully open, the bloom form is more cupped, and the petals are looselycupped to moderately undulated with petal edges moderately reflexedoutward.

PETALS

The substance of the petals is heavy and of thick thickness, with uppersurfaces slightly shiny and under surfaces slightly shiny to almostmatte. The petals are about 2.3 to about 6.4 cm. in length and about 1.4to about 5.7 cm. in width at the widest point. Petal margins are entire.

The outer petals are moderately obovate to somewhat rounded in shapewith rounded apices.

The inner petals are broadly obovate in shape with rounded apices.

Petaloids are about 0.5 to about 3.1 cm. in length and about 0.4 toabout 2.7 cm. in width at the widest point. Petaloids are irregularlyshaped moderately oblanceolate to somewhat obovate to subulate withrounded apices.

NEWLY OPENED FLOWER

The under surface color of the outer, intermediate and inner petals isbetween 4D and 155B sometimes moderately suffused on the outer petalswith between 60D and 63A. There is no visible change in coloration atthe point where the petal attaches. The upper surface color of theouter, intermediate and inner petals is between 4D and 8D usuallyheavily suffused with between 66D and 66B on the upper two thirds of thepetals. There is no visible change in coloration at the point where thepetal attaches.

The under and upper surface colors of the petaloids are similar incoloration to the upper and under surfaces of the intermediate and innerpetals.

The general tonality of the newly opened flower is between 66D and 66B.

THREE-DAY-OLD FLOWER

The under surface color of the outer petals is between 4D and 155Bsometimes moderately suffused with between 61B and 58A. There is novisible change in coloration at the point where the petal attaches. Theupper surface color of the outer petals is between 4D and 8D usuallylightly suffused with between 67D and 61C on the upper two thirds of thepetals. There is no visible change in coloration at the point where thepetal attaches.

The under surface color of the intermediate petals is between 4D and155B. The upper surface color of the intermediate petals is between 4Dand 8D usually moderately suffused with between 67D and 61C on the uppertwo thirds of the petals.

The under surface color of the inner petals is between 4D and 155B. Theupper surface color of the inner petals is between 4D and 8D usuallyheavily suffused with between 61C and 57C on the upper two thirds of thepetals.

The under and upper surface colors of the petaloids are similar incoloration to the upper and under surfaces of the inner petals.

The general tonality of the three-day-old flower is between 67D and 61C.

On the spent bloom, the petals usually drop off cleanly.

In December in Rancho Cucamonga, Calif., blooms on the bush growingoutdoors generally last about four to five days. Cut roses from plantsgrown outdoors and kept at normal indoor living temperatures generallylast about four to five days.

MALE REPRODUCTIVE ORGANS

Stamens are many in number (average about 105) and are arrangedregularly about the pistils; a few are mixed with petaloids. Thefilaments are of somewhat short to medium length (about 0.4 to about 0.9cm.) most with anthers. Filaments are between 4D and 2D in color. Theanthers are somewhat small for the class and all open approximately atthe same time. Anther color when immature is between 10C and 8C. Anthercolor at maturity is near 164C on the external part and near 200A on theinternal part. Pollen is moderate and between 21B and 22B in color.

FEMALE REPRODUCTIVE ORGANS

Pistils vary in number (average about 95). The styles are moderatelyeven, average in length (about 0.6 to about 0.9 cm.), average tosomewhat thin in caliper, and loosely bunched. Stigma color is between13C and 14C. Style color is between 1D and 154D sometimes lightlysuffused with between 60A and 60B. Ovaries are usually all enclosed inthe calyx. The ovaries are of medium size and between 158B and 158C incolor.

Hips have not been observed on this variety when grown in RanchoCucamonga, Calif.

FOLIAGE

The compound leaves are usually comprised of three to seven leaflets andare borne abundantly. The five-leaflet leaves are about 8.7 to about12.9 cm. in length and about 7.3 to about 10.7 cm. in width at thewidest point, moderately leathery to somewhat crisp in texture on bothsides, and glossy in finish on the upper side and semi-glossy tosomewhat matte in finish on the under side. The leaves have a pinnatevenation pattern. The terminal leaflets are about 4.3 to about 6.8 cm.in length and about 2.5 to about 4.7 cm. in width at the widest point,shaped broadly ovate with acute apices and rounded bases. Their marginsare usually simply serrate.

The upper surface color of the mature leaf is between 139A and 137A. Theunder surface color of the mature leaf is between 147B and 148C. Theunder and upper colors of the leaf veins on the mature leaf are similarin coloration to the upper and under surfaces colors of the mature leaf.The upper surface color of the young leaf is between 137B and 137C,often heavily suffused with between 187A and 187B. The under surfacecolor of the young leaf is between 146D and 146C, often heavily suffusedwith between 187A and 187B. The under and upper colors of the leaf veinson the young leaf are similar in coloration to the upper and undersurfaces colors of the young leaf.

The rachis is about 4.1 to about 6.3 cm. in length, about 0.1 to about0.2 cm in width at the widest point, and rough. The upper side is deeplygrooved with very few hairs and stipitate glands on the edges of thegrooves. The under side of the rachis is rough with few stipitate glandsand small prickles. The rachis color is near 146D on the under side andnear 137C on the upper side, often heavily suffused on the young leaveswith between 187A and 187B.

The stipules are about 0.7 to about 1.1 cm. in length and of somewhatnarrow to medium width (about 0.4 to about 0.6 cm.) with somewhat shortto medium length straight points that usually turn out at an angle ofmore than 45 degrees. The under and upper surface color of the stipuleis between 137B and 137C. The upper and under surfaces of the stipulesare smooth in texture.

The petiole is somewhat light to average in caliper and rough. The upperside is deeply grooved with very few hairs and stipitate glands on theedges of the grooves. The under side of the petiole is rough with fewstipitate glands and small prickles. The petiole is about 0.7 to about1.7 cm. in length and about 0.1 to about 0.2 cm in width at the widestpoint. The petiole color is near 146D on the under side and near 137C onthe upper side, often heavily suffused on the young leaves with between187A and 187B.

The plant displays an average degree of resistance to powdery mildew(Sphaerotheca pannosa), downy mildew (Peronospora sparsa) and rust(Phragmidium sp.) as compared to other commercial varieties grown undercomparable conditions in Rancho Cucamonga, Calif. The plant's winterhardiness and drought/heat tolerance are yet to be determined.

GROWTH

The plant has a bushy upright moderately spreading medium to moderatelytall growing habit (about 95 to about 172 cm. in height and about 122 toabout 155 cm. spread at the widest point), with full branching. Itdisplays vigorous growth and the canes are of medium to somewhat heavycaliper for the class (about 1.3 to about 2.4 cm. in diameter at thewidest point).

The color of the major stems is between 138A and 147B. The major stemsare rough in texture and they bear many large prickles that are about0.7 to about 1.3 cm. in length. The large prickles are almost straightto angled slightly downward with a moderately long somewhat narrow ovalbase; prickle color is between 165C and 164B often lightly suffused withbetween 201B and 201C. The major stem bears few small prickles ofsimilar shape and coloration.

The color of the branches is between 146B and 137C. The branches arerough in texture and they bear many large prickles which are of similarsize and shape to the large prickles on the major stems; prickle coloris between 166A and 165A. The branches bear few small prickles ofsimilar shape and coloration.

The color of the new shoots is between 146B and 137C often heavilysuffused with between 187B and 187A. The new shoots are rough in textureand they bear many large prickles which are of similar size and shape tothe large prickles on the major stems; prickle color is between 152C and152B often moderately suffused with between 187D and 187C. The shootsbear few small prickles of similar shape and coloration.

I claim:
 1. A new and distinct Hybrid Tea rose plant of the varietysubstantially as described and illustrated herein.